New Wheels/Tires..offset? - Ranger-Forums - The Ultimate Ford Ranger Resource


Wheels & Tires Semi-Tech General discussion of wheels and tires for the Ford Ranger.
Sponsored by:
Sponsored by:

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-24-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
New Wheels/Tires..offset?

OK, I've done a crap load of searching & I guess I'm confused.
I'm thinking very seriously about picking up 5 of these as soon as I get my taxes back:

http://www.lakeshorewheelandtire.com...71-Black.shtml
It doesn't say what the back spacing is but @ 15x8 its got a offset of -27mm, bolt pattern of 5x114.3mm.
Will these stick out to far or sit in too far?
I'll be getting 5 32x11.5x15 BFGoodrich All-Terrain T/A KO
Thanks for any help

Rick

Last edited by RHuckster; 01-24-2007 at 04:38 AM.
Reply With Quote
  #2  
Old 01-24-2007
zabeard's Avatar
who?
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
by the looks of them they are a mickey thompson classic 2 knock off, which alot of companies do and usually on a 15x8 the backspacing ranges from 3.5-4.

if you look here the 15x8 Classic 2 is -30mm offset

http://store.summitracing.com/partde...1&autoview=sku

and based off this picture and since the width really isnt to the outside im just gonna venture to guess that the lip in each side is 3/8" = .375"

on a 15x8 total width is 8.75 / 2 = 4.375

take 4.375 - 1.063 (27mm your offset) = 3.312" backspacing which is dang close to a 15x8 Mickey Thompson Classic two that a lot of ranger guys run.

if you dont think im very close do the math for the Mickey Thompson 15x8 Classic II

We know the backspacing is 3.313 and the offset is -30mm width 8"

4" - 1.181 (30mm) = 2.8189" backspacing

take the backspacing 3.313 - 2.8189 = .4941 = the width of the lip, so i was pretty close saying the lip was 3/8" thick.

even if we figure the lip at 1/2"
9/2 = 4.5
4.5 - - 1.063 (27mm your offset) = 3.437" backspacing.



if none of that made sense... the short answer is those wheels will work perfectly.
Reply With Quote
  #3  
Old 01-24-2007
Alucard's Avatar
Member
iTrader: (1)
 
Join Date: Oct 2005
Location: Saxonburg, PA
Posts: 91
should be about somewhere between 3.25 and 3.5" of backspacing i used a chart from https://www.rsracing.com/tech-wheel.html#backspace i have a -19 offset on my rims (3.75" backspacing) and they stick out past the fender about 1" to an 1-1/2"
Reply With Quote
  #4  
Old 01-24-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
Holy **** Zach, now I'm really confused but then again I'm on my 14th hour here @ work so thats probably pretty easy to do. If you say they will work thats all I need to know, thanks!

Rick
Reply With Quote
  #5  
Old 01-24-2007
V8 Level II's Avatar
RF Veteran
iTrader: (4)
 
Join Date: Nov 2004
Location: Michigan
Posts: 7,831
8" width and -27mm offset translates to just under 3.5" backspacing. Stock Ranger is 4.5"

So, compared to a stock tire/wheel:

the inside wheel lip would be just over 1" farther out;
the outside wheel lip would be just over 2" farther out;
the centerline of the tire would be just over 1.5" farther out.

Used with a 32x11.50 tire, you could have contact with the bumper and/or inner fender when turning.
Reply With Quote
  #6  
Old 01-24-2007
zabeard's Avatar
who?
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
Quote:
Originally Posted by RHuckster
Holy **** Zach, now I'm really confused but then again I'm on my 14th hour here @ work so thats probably pretty easy to do. If you say they will work thats all I need to know, thanks!

Rick

its ok, i get confused by it too but it was just a bunch of math to figure out the backspacing. if you have either the offset or the backspacing you can figure out the other using those.
Reply With Quote
  #7  
Old 01-24-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
Thanks a bunch guys. I think I'll take my chances & hope they don't stick out to far beyond the fender flares. Already broke the news to the wife that I'm buying ANOTHER set of rims & tires. I can't post her comments because it would be ************ out.
I guess I can't blame her since the current wheels & tires aren't even 6 months old yet but she wasn't to surprised since I did the same thing on my Eclipse. Hopefully Discount Tires will give me a nice trade-in value like they did with the Eclipse.
Anyways..thanks, hopefully these new ones will spice up the side view a bit, right now its kinda bland.

Rick
Reply With Quote
  #8  
Old 01-24-2007
lifted97ranger's Avatar
Member
 
Join Date: Nov 2005
Location: Charlestown, IN
Posts: 1
those wheels will look good on your truck.....what tires you going with? you gonna put a body lift on it too? you should that would look sweet with 33's and a bl....
Reply With Quote
  #9  
Old 01-24-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
Thanks, @ this point in time I'm leaning towards the 32 x 11.5 x 15 BFGoodrich All-Terrain T/A KO's.

Rick
Reply With Quote
  #10  
Old 01-24-2007
zabeard's Avatar
who?
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
yes that will be a good match Rick
Reply With Quote
  #11  
Old 01-24-2007
lifted97ranger's Avatar
Member
 
Join Date: Nov 2005
Location: Charlestown, IN
Posts: 1
those will look sweet also....
Reply With Quote
  #12  
Old 01-24-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
Thanks, yea, I've gotta think of my mileage since I drive 100+ miles a day to work. I would luv to put a lift & @ least 33's but every inch of tire size I go up my mileage drops that much more. The new tires will be 5 pounds lighter than my current tires & hopefully the wheels are a bit lighter as well. I took a huge hit in mileage when I upgraded this last time but @ the time I wasn't thinking.

Rick
Reply With Quote
  #13  
Old 01-24-2007
zabeard's Avatar
who?
iTrader: (8)
 
Join Date: Nov 2004
Location: IN
Posts: 26,045
what type of mpg are you getting?
Reply With Quote
  #14  
Old 01-24-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
I'm back up to 315 miles to a tank & averaging 18MPG since I did the programmer, fan & pulley but it dropped way off when I added the wheels & tires.

Rick
Reply With Quote
  #15  
Old 01-26-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
I found a site that has those wheels with these specs: 15x8 5/4.5 with a 3 1/2" back spacing but nothing about offset..."Sigh", either they give me 1 or the other but no both.

Rick
Reply With Quote
  #16  
Old 01-26-2007
V8 Level II's Avatar
RF Veteran
iTrader: (4)
 
Join Date: Nov 2004
Location: Michigan
Posts: 7,831
Of course, the most accurate way would be to physically measure all three dimensions.

The overall width of factory or aftermarket wheels commonly used on Rangers is very close to 1" greater than the nominal width. Using that fact, you can closely approximate the offset, backspacing or nominal width if you know the other two parameters.

Offset = backspacing - [(nominal width + 1") / 2]

In the case of an 8" width and 3.5" BS:

3.5" - [(8" + 1") / 2] = -1" = -25.4mm

Notice that this result is very close the the -27mm quoted in the other chart.
Reply With Quote
  #17  
Old 01-26-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
Ahh...could be exactly the same then, just a different site. Cool, I'm going down today to order the wheels & tires. There goes a big chunk of my tax return.
Damn, this truck is taking a lot & not giving much back...yet.
Hopefully it can win a few shows this year.

Rick
Reply With Quote
  #18  
Old 01-26-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
OK, I ordered the wheels & tires, the tires are the BFG's as I mentioned above, the wheels are a brand I didn't catch when he told me. I asked for the Ions & he said(discount tires) the finished is bad but had some that looks the same. It also has a different offset..more to fit the Ranger..we will see. I also unloaded my Tires & wheels @ a loss for $450.
Aslo ordered screamin Demon Coil pack, yellow Spark Plug wires & outerwears Prefilter in yellow. I'll pick up some spark plugs when I get the coil & wires, I'm guessing the standarm Motorcraft is the way to go..hows about Denso iridiums?

Rick
Reply With Quote
  #19  
Old 01-26-2007
lifted97ranger's Avatar
Member
 
Join Date: Nov 2005
Location: Charlestown, IN
Posts: 1
Quote:
Originally Posted by RHuckster
OK, I ordered the wheels & tires, the tires are the BFG's as I mentioned above, the wheels are a brand I didn't catch when he told me. I asked for the Ions & he said(discount tires) the finished is bad but had some that looks the same. It also has a different offset..more to fit the Ranger..we will see. I also unloaded my Tires & wheels @ a loss for $450.
Aslo ordered screamin Demon Coil pack, yellow Spark Plug wires & outerwears Prefilter in yellow. I'll pick up some spark plugs when I get the coil & wires, I'm guessing the standarm Motorcraft is the way to go..hows about Denso iridiums?

Rick
sweet deal......i think you will like the coil pack IF you gap out the plugs.....as far as new plugs goes, dont get nothing but MOTORCRAFT!!! no other brand will run as well as the Motorcraft plugs in our 4.0's....
Reply With Quote
  #20  
Old 01-26-2007
RHuckster's Avatar
Member
Thread Starter
 
Join Date: Apr 2006
Location: Lake Elsinore, Ca.
Posts: 643
Thanks, I thought I had read that somewhere. I'll gap them out to .065 when I get them.

Rick
Reply With Quote
  #21  
Old 01-26-2007
lifted97ranger's Avatar
Member
 
Join Date: Nov 2005
Location: Charlestown, IN
Posts: 1
Quote:
Originally Posted by RHuckster
Thanks, I thought I had read that somewhere. I'll gap them out to .065 when I get them.

Rick
good call......
Reply With Quote
  #22  
Old 01-26-2007
Mr. Special's Avatar
Member
 
Join Date: May 2005
Location: Irvine, CA
Posts: 3,411
ooo very nice Rick! Youre gonna love those BFGs next time you let that truck out on the dirt! Rims look killer too
Reply With Quote
  #23  
Old 01-26-2007
mersingt's Avatar
Member
 
Join Date: Aug 2004
Location: Apex nc
Posts: 340
im pretty sure your nascar haulers have a -6 offset....same as my new 16x8's that are shipping right now....looking at wheels today i was gonna go with some sim beadlocks but they were a -19 and that was gonna be to much.....-27 sounds like a whole heck of alot.
Reply With Quote
  #24  
Old 01-27-2007
Level III Supporter
iTrader: (2)
 
Join Date: Jun 2004
Location: usa
Posts: 24,936
you will love the 32x11.5 i know i love mine!
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
-51mm offset wheels on 31x10.5x15 ties southernboy94 Wheels & Tires Semi-Tech 1 04-15-2017 11:27 PM
any changes in the wheels? offset? backset? NoTyme Wheels & Tires Semi-Tech 8 01-17-2011 08:59 PM
What 15x8 wheels to buy? Backspacing/offset? 05Level2 Wheels & Tires Semi-Tech 21 10-22-2010 01:01 AM
15x8 wheels with -19mm offset but different backspacing...HELP! Jwad00 Wheels & Tires Semi-Tech 1 09-15-2009 07:15 PM
Highest offset wheel for lift? Zero Suspension Tech 7 02-27-2005 03:03 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 06:02 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.